Fallout 3: Vault 108's Cloning Experiment Went Horribly Wrong

gamerant.com:

Vault 108 of Fallout 3 is one of the strangest locations in the game, primarily because of its inhabitants. In it, the player can find multiple clones of the same man: Gary. The vault was to be the location for another one of Vault-Tec’s experiments, but of course things didn’t go as planned.

Should the player journey far east of the map in Fallout 3 and head south of Canterbury Commons, they’ll find Vault 108. Exploring it and other data sources will uncover a few clues as to what happened to the vault and its former residents.

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There isn’t much information left on Vault 108’s goals or history to be uncovered when players find it. However, they can find a terminal in the Citadel that lists some of the vault’s basic information. Vault-Tec began constructing the facility in 206,1 but put a stop to it in 2069 for reasons not specified. Despite this, the vault would be able to house a total of 475 residents for up to 38 years.

The Citadel terminal also reveals that Vault-Tec had purposefully sabotaged the vault’s energy supply. Its primary source of electricity was to be nuclear power, but this was rigged to fail after 20 years. Vault 108 had a backup energy source in the form of a mini geothermal plant, but this was built specifically so that it wouldn’t be able to power the entirety of the vault.

This could be why construction was halted, hinting Vault-Tec did so purposefully. This is further corroborated by a note in the terminal entry, citing that the admin is aware the geothermal backup can only power the facility partially. Finally, Vault 108 was assigned a huge arsenal of defensive weaponry, three times what other vaults would receive. However, it wouldn’t be